DCT / PowerShift Transmission Update TSB Thread - Page 128 - Ford Focus Forum, Ford Focus ST Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum > Ford Focus Third Generation > MK3 TSB, Recall & Problems Archive

MK3 TSB, Recall & Problems Archive The place to chat about TSB and Known Issues for the 2012 Focus.

Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 07-02-2012, 11:14 PM   #1271
Timthom62
Focus Enthusiast
 
Timthom62's Avatar
 
Join Date: Apr 2012
Fan#: 97579
Location: Oregon, OR
What I Drive: 2012 Red Candy 5-Door SEL 303A

Posts: 226
Points 2,685, Level 31
Points: 2,685, Level: 31 Points: 2,685, Level: 31 Points: 2,685, Level: 31
Level Up 57% Completed
Level up: 57% Level up: 57% Level up: 57%
Forum Activity 1%
Activity: 1% Activity: 1% Activity: 1%
FF Reputation: 5 Timthom62 Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by Freedom540 View Post
Is it possible for the transmission to forget the update after receiving it? I got the update a couple months ago but returned to Ford to have a clunking in the suspension fixed (strut bearings which are once again clunking) and after the repair i noticed the transmission seems to be up to its old pre-flash tricks. Is this possible?!
It appears that the memory of the TCU is cleared if the battery is disconnected. Assuming that the Ford techs disconnected your battery while they were working on it, this could be the cause.
Timthom62 is offline  
    Reply With Quote
Sponsored Links
Advertisement
 
Old 07-02-2012, 11:54 PM   #1272
Kabigon
Focus Fanatic
 
Join Date: Jul 2011
Fan#: 88299
Location: Torrance, CA
What I Drive: 2012 sterling gray Titanium

Posts: 3,070
Points 3,772, Level 38
Points: 3,772, Level: 38 Points: 3,772, Level: 38 Points: 3,772, Level: 38
Level Up 82% Completed
Level up: 82% Level up: 82% Level up: 82%
Forum Activity 7%
Activity: 7% Activity: 7% Activity: 7%
FF Reputation: 11 Kabigon Great Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by Timthom62 View Post
It appears that the memory of the TCU is cleared if the battery is disconnected. Assuming that the Ford techs disconnected your battery while they were working on it, this could be the cause.
The firmware of all modules (PCM, TCM, BCM, etc.) are stored in flash memory.

If you upgraded your OS from OSX Weasel to OSX Aardvark , your computer would not revert to OSX Weasel if the power was removed.
Kabigon is online now  
    Reply With Quote
Old 07-02-2012, 11:58 PM   #1273
Kabigon
Focus Fanatic
 
Join Date: Jul 2011
Fan#: 88299
Location: Torrance, CA
What I Drive: 2012 sterling gray Titanium

Posts: 3,070
Points 3,772, Level 38
Points: 3,772, Level: 38 Points: 3,772, Level: 38 Points: 3,772, Level: 38
Level Up 82% Completed
Level up: 82% Level up: 82% Level up: 82%
Forum Activity 7%
Activity: 7% Activity: 7% Activity: 7%
FF Reputation: 11 Kabigon Great Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by dberezin View Post
You shouldn't have to baby the car when driving it.
I have reason to believe that it may be just the opposite. The clutches may become "grabby" if the car is always babied. I would be curious to know if the clutches "smooth out" after several 0-60 runs with your foot to the floor.
Kabigon is online now  
    Reply With Quote
Old 07-03-2012, 05:55 AM   #1274
JL330
Focus Enthusiast
 
Join Date: May 2012
Fan#: 99616
Location: Bowling Green, KY
What I Drive: 2012 silver focus S

Posts: 486
FF Reputation: 1 JL330 Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by Kabigon View Post
I have reason to believe that it may be just the opposite. The clutches may become "grabby" if the car is always babied. I would be curious to know if the clutches "smooth out" after several 0-60 runs with your foot to the floor.
Mine did. I normally baby it, but I said screw has mileage and romped on it for a while during my lunch break. It's driven great since then and it's even less noisy. I love that under the right conditions, I can chirp the tires on the 1-2 shift in a car like this.
JL330 is offline  
    Reply With Quote
Old 07-03-2012, 06:11 AM   #1275
smizak
Focus Enthusiast
 
Join Date: Nov 2011
Fan#: 92058
Location: Buffalo, NY
What I Drive: 2012 Black SEL

Posts: 219
FF Reputation: 2 smizak Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by Kabigon View Post
If you upgraded your OS from OSX Weasel to OSX Aardvark , your computer would not revert to OSX Weasel if the power was removed.
Speak English, iTard.





j/k
smizak is offline  
    Reply With Quote
Old 07-03-2012, 07:41 AM   #1276
Timthom62
Focus Enthusiast
 
Timthom62's Avatar
 
Join Date: Apr 2012
Fan#: 97579
Location: Oregon, OR
What I Drive: 2012 Red Candy 5-Door SEL 303A

Posts: 226
Points 2,685, Level 31
Points: 2,685, Level: 31 Points: 2,685, Level: 31 Points: 2,685, Level: 31
Level Up 57% Completed
Level up: 57% Level up: 57% Level up: 57%
Forum Activity 1%
Activity: 1% Activity: 1% Activity: 1%
FF Reputation: 5 Timthom62 Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by Kabigon View Post
The firmware of all modules (PCM, TCM, BCM, etc.) are stored in flash memory.
The firmware would be stored in non-volatile memory, yes.

Do you have some documentation that says that this is also true for the 'learned' portion of the memory in the TCM?

According to the Ford techs I've spoken with, and the little documentation I've been able to find, the 'learned' portion is stored in volatile memory that is cleared when power is removed. This type of memory allows the 'learned' portion of the program to be constantly overwritten, as opposed to having to be externally 'flashed' like the EPROMs used for the firmware.
Timthom62 is offline  
    Reply With Quote
Old 07-03-2012, 07:49 AM   #1277
cbdallas
Focus Addict
 
cbdallas's Avatar
 
Join Date: Jun 2012
Fan#: 100296
Location: Wylie, TX
What I Drive: 2014 Titanium 5-speed

Posts: 841
Points 2,017, Level 27
Points: 2,017, Level: 27 Points: 2,017, Level: 27 Points: 2,017, Level: 27
Level Up 12% Completed
Level up: 12% Level up: 12% Level up: 12%
Forum Activity 5%
Activity: 5% Activity: 5% Activity: 5%
FF Reputation: 3 cbdallas Good Standing Member
Buy-Sell-Trade Rating: (0)
I've had mine since 6/15 but it only has about 400 miles on it, and it seems to be a little smoother every time I drive it. I do keep it in "S" though, and that in itself exhibits some weird behavior.

On my way home from school last night, someone ahead of me slowed to make a right turn, and I 'got on it' after I went past them, & it downshifted to 3rd, and then stayed there. I hadn't initiated manual mode, but for some reason it just locked itself in 3rd even after I let up on the throttle. It never did upshift until I hit the 'up' button, and then the gear numbers appeared on the screen and it shifted. Wierd anamole.

I still get a bit of bog when I turn into my subdivision and accelerate, but it does it less in "S" mode. Not sure what that's about either.

Overall it's getting better than the day I brought it home. I can tell it's learning something about the way I drive. Thankfully.
cbdallas is online now  
    Reply With Quote
Old 07-03-2012, 08:03 AM   #1278
Brabs_Weather
Focus Enthusiast
 
Join Date: Jan 2012
Fan#: 93741
Location: Chesapeake, VA
What I Drive: 04 Ex Ltd, 08 Edge Ltd, 12 FF Ti

Posts: 387
FF Reputation: 2 Brabs_Weather Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by cbdallas View Post
I've had mine since 6/15 but it only has about 400 miles on it, and it seems to be a little smoother every time I drive it. I do keep it in "S" though, and that in itself exhibits some weird behavior.

On my way home from school last night, someone ahead of me slowed to make a right turn, and I 'got on it' after I went past them, & it downshifted to 3rd, and then stayed there. I hadn't initiated manual mode, but for some reason it just locked itself in 3rd even after I let up on the throttle. It never did upshift until I hit the 'up' button, and then the gear numbers appeared on the screen and it shifted. Wierd anamole.

I still get a bit of bog when I turn into my subdivision and accelerate, but it does it less in "S" mode. Not sure what that's about either.

Overall it's getting better than the day I brought it home. I can tell it's learning something about the way I drive. Thankfully.
Mine shifts by itself in S mode, however it will not shift into 6th automatically. Once you use the shift button in S mode it will not shift until you redline it. You have to go up to D and back to S. Well thats how mine seems to work.
__________________
White Platinum Tricoat Metallic
2012 Ford Focus Titanium
Handling Package Nitto Motivo's
Borla Exhaust with UltraQuiet resonator
K&N X-4870. Steeda RSB
Brabs_Weather is offline  
    Reply With Quote
Old 07-03-2012, 03:23 PM   #1279
Kabigon
Focus Fanatic
 
Join Date: Jul 2011
Fan#: 88299
Location: Torrance, CA
What I Drive: 2012 sterling gray Titanium

Posts: 3,070
Points 3,772, Level 38
Points: 3,772, Level: 38 Points: 3,772, Level: 38 Points: 3,772, Level: 38
Level Up 82% Completed
Level up: 82% Level up: 82% Level up: 82%
Forum Activity 7%
Activity: 7% Activity: 7% Activity: 7%
FF Reputation: 11 Kabigon Great Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by cbdallas View Post
I do keep it in "S" though, and that in itself exhibits some weird behavior.
In 'S' mode, the transmission will not shift into 6th gear automatically (I'm not sure if you are aware of this).
Kabigon is online now  
    Reply With Quote
Old 07-03-2012, 03:39 PM   #1280
Kabigon
Focus Fanatic
 
Join Date: Jul 2011
Fan#: 88299
Location: Torrance, CA
What I Drive: 2012 sterling gray Titanium

Posts: 3,070
Points 3,772, Level 38
Points: 3,772, Level: 38 Points: 3,772, Level: 38 Points: 3,772, Level: 38
Level Up 82% Completed
Level up: 82% Level up: 82% Level up: 82%
Forum Activity 7%
Activity: 7% Activity: 7% Activity: 7%
FF Reputation: 11 Kabigon Great Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by Timthom62 View Post
The firmware would be stored in non-volatile memory, yes.

Do you have some documentation that says that this is also true for the 'learned' portion of the memory in the TCM?

According to the Ford techs I've spoken with, and the little documentation I've been able to find, the 'learned' portion is stored in volatile memory that is cleared when power is removed. This type of memory allows the 'learned' portion of the program to be constantly overwritten, as opposed to having to be externally 'flashed' like the EPROMs used for the firmware.
In my experience, if the adaptive learning of the TCM is really cleared (which would happen with some firmware updates), the car won't even move when you put it in gear. This is because the TCM doesn't know the point of enagagement for the clutches.
Kabigon is online now  
    Reply With Quote
Reply

Bookmarks & Social Networks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 11:10 PM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Acura TLX or Fiesta ST. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.